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Restructuring, Impairment, and Related Charges, Net - Schedule of Restructuring, Impairment, and Related Charges, Net (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Jun. 30, 2026 | Jun. 30, 2025
Restructuring Cost and Reserve [Line Items] |  |
Severance and employee-related costs, net | $ 32 | $ 4
Exit and other-related costs | 57 | 41
Asset impairments and accelerated depreciation | 47 | 2
Total | 136 | 47
Operating Segments | North American Pharmaceutical |  |
Restructuring Cost and Reserve [Line Items] |  |
Severance and employee-related costs, net | 0 | 0
Exit and other-related costs | 1 | 1
Asset impairments and accelerated depreciation | 1 | 0
Total | 2 | 1
Operating Segments | Prescription Technology Solutions |  |
Restructuring Cost and Reserve [Line Items] |  |
Severance and employee-related costs, net | 11 |
Exit and other-related costs | 10 |
Asset impairments and accelerated depreciation | 40 |
Total | 61 |
Operating Segments | Medical-Surgical Solutions |  |
Restructuring Cost and Reserve [Line Items] |  |
Severance and employee-related costs, net | 14 | 5
Exit and other-related costs | 9 | 12
Asset impairments and accelerated depreciation | 0 | 0
Total | 23 | 17
Corporate |  |
Restructuring Cost and Reserve [Line Items] |  |
Severance and employee-related costs, net | 7 | (1)
Exit and other-related costs | 37 | 28
Asset impairments and accelerated depreciation | 6 | 2
Total | $ 50 | $ 29

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